As a zookeeper at the Alaska Zoo, Tim Lescher takes care of a group of gray wolves -- a species he said has been misunderstood.
By Kate Tobin
Wolves were reintroduced to Yellowstone National Park two decades ago, and scientists are still keeping a close eye on their ecological impact.
For the first time in years, hunting season for the once-endangered gray wolf is underway in Idaho and Montana to reduce the predator's population. Cattle ranchers say the hunts are necessary to protect their herds, but environmentalists disagree. Science correspondent…
By Mike Fritz, Miles O'Brien
Science correspondent Miles O'Brien reports on the successful return of a once endangered species now caught in the crosshairs of cattle ranchers.
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